Objective:

To retrospectively study the performance of pure breast ductal carcinoma

in situ

(DCIS) and invasive ductal carcinoma accompanied by DCIS on contrast-enhanced ultrasound (CEUS).

Methods:

A total of 261 patients received pre-surgical CEUS

and 14 pure DCIS (group A) and 29 mixed patients were selected. The 29 mixed patients were further divided into two groups according to the DCIS component proportion: proportion20% (14 cases

group B)

proportion＜20% (15 cases

group C). Then CEUS analysis was conducted.

Results:

The pure DCIS was characterized by the edge to central perfusion with high intensity

and vascular perfusion in some peripheral areas with ring enhancement sometimes. Group A had a larger area

under the curve and a steeper ascending slope compared with group B.

Conclusion:

The CEUS manifestations of pure DCIS and invasive ductal carcinoma accompanied by DCIS are some what different about the characteristics.